Football helmet



FIG. 1 is a perspective view of a football helmet;

FIG. 2 is a side view of the helmet;

FIG. 3 is a front view of the helmet;

FIG. 4 is a rear view of the helmet;

FIG. 5 is a top view of the helmet; and,

FIG. 6 is a bottom view of the helmet.

The details shown in broken lines are for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a football helmet, as shown and described. 